diff --git a/build.gradle b/build.gradle
index 03ed587..57e443b 100644
--- a/build.gradle
+++ b/build.gradle
@@ -5,7 +5,7 @@ plugins {
 
 project.group = 'me.lookforfps'
 project.description = "OpenAI Java API"
-project.version = new Version("1", "0", "0")
+project.version = new Version("1", "0", "1")
 
 java {
     sourceCompatibility = JavaVersion.VERSION_1_8
diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index b692886..fb17731 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -1,8 +1,8 @@
 
 [versions]
-com-fasterxml-jackson-core-jackson-databind = "2.17.0"
-org-projectlombok-lombok = "1.18.32"
-org-slf4j-slf4j-api = "2.0.13"
+com-fasterxml-jackson-core-jackson-databind = "2.17.2"
+org-projectlombok-lombok = "1.18.34"
+org-slf4j-slf4j-api = "2.0.16"
 
 [libraries]
 com-fasterxml-jackson-core-jackson-databind = { module = "com.fasterxml.jackson.core:jackson-databind", version.ref = "com-fasterxml-jackson-core-jackson-databind" }
diff --git a/src/main/java/me/lookforfps/oja/chatcompletion/ChatCompletionService.java b/src/main/java/me/lookforfps/oja/chatcompletion/ChatCompletionService.java
index fae88b2..972f303 100644
--- a/src/main/java/me/lookforfps/oja/chatcompletion/ChatCompletionService.java
+++ b/src/main/java/me/lookforfps/oja/chatcompletion/ChatCompletionService.java
@@ -153,9 +153,7 @@ private byte[] buildRequest() throws IOException {
         requestDto.setMax_tokens(config.getMaxTokens());
         requestDto.setN(config.getChoices());
         requestDto.setPresence_penalty(config.getPresencePenalty());
-        if(config.getResponseType() != null) {
-            requestDto.setResponse_format(new ResponseFormat(config.getResponseType().getIdentifier()));
-        }
+        requestDto.setResponse_format(config.getResponseFormat());
         requestDto.setSeed(config.getSeed());
         if(config.getServiceTier() != null) {
             requestDto.setService_tier(config.getServiceTier().getIdentifier());
diff --git a/src/main/java/me/lookforfps/oja/chatcompletion/config/ChatCompletionConfiguration.java b/src/main/java/me/lookforfps/oja/chatcompletion/config/ChatCompletionConfiguration.java
index 13e54ae..1e4a870 100644
--- a/src/main/java/me/lookforfps/oja/chatcompletion/config/ChatCompletionConfiguration.java
+++ b/src/main/java/me/lookforfps/oja/chatcompletion/config/ChatCompletionConfiguration.java
@@ -2,6 +2,7 @@
 
 import lombok.Data;
 import lombok.EqualsAndHashCode;
+import me.lookforfps.oja.chatcompletion.model.natives.request.ResponseFormat;
 import me.lookforfps.oja.chatcompletion.model.natives.request.ResponseType;
 import me.lookforfps.oja.chatcompletion.model.natives.request.ServiceTier;
 import me.lookforfps.oja.chatcompletion.model.natives.tools.Tool;
@@ -111,7 +112,7 @@ public class ChatCompletionConfiguration extends Configuration {
      * <br><br>
      * Setting to <code>{ "type": "json_object" }</code> enables JSON mode, which guarantees the message the model generates is valid JSON.
      */
-    private ResponseType responseType;
+    private ResponseFormat responseFormat;
     /**
      * What sampling temperature to use, between 0 and 2.
      * Higher values like 0.8 will make the output more random, while lower values like 0.2 will make it more focused and deterministic.<br>
@@ -163,4 +164,11 @@ public void removeTool(Tool tool) {
     public void removeTool(int toolIndex) {
         tools.remove(toolIndex);
     }
+
+    public void setResponseFormat(ResponseType responsetype) {
+        this.responseFormat = new ResponseFormat(responsetype.getIdentifier());
+    }
+    public void setResponseFormat(String jsonSchema) {
+        this.responseFormat = new ResponseFormat("json_schema", jsonSchema);
+    }
 }
diff --git a/src/main/java/me/lookforfps/oja/chatcompletion/model/natives/message/AssistantMessage.java b/src/main/java/me/lookforfps/oja/chatcompletion/model/natives/message/AssistantMessage.java
index 0bf6360..51ce3a5 100644
--- a/src/main/java/me/lookforfps/oja/chatcompletion/model/natives/message/AssistantMessage.java
+++ b/src/main/java/me/lookforfps/oja/chatcompletion/model/natives/message/AssistantMessage.java
@@ -14,15 +14,20 @@ public class AssistantMessage extends Message {
 
     private String content;
     private String name;
+    private String refusal;
     private List<ToolCall> tool_calls;
 
 
-    public AssistantMessage(String content, String name, List<ToolCall> tool_calls) {
+    public AssistantMessage(String content, String name, String refusal, List<ToolCall> tool_calls) {
         super(MessageRole.ASSISTANT);
         this.content = content;
         this.name = name;
+        this.refusal = refusal;
         this.tool_calls = tool_calls;
     }
+    public AssistantMessage(String content, String name, List<ToolCall> tool_calls) {
+        this(content, name, null, tool_calls);
+    }
     public AssistantMessage(String content, List<ToolCall> tool_calls) {
         this(content, null, tool_calls);
     }
diff --git a/src/main/java/me/lookforfps/oja/chatcompletion/model/natives/request/ResponseFormat.java b/src/main/java/me/lookforfps/oja/chatcompletion/model/natives/request/ResponseFormat.java
index 2290783..6372fec 100644
--- a/src/main/java/me/lookforfps/oja/chatcompletion/model/natives/request/ResponseFormat.java
+++ b/src/main/java/me/lookforfps/oja/chatcompletion/model/natives/request/ResponseFormat.java
@@ -1,12 +1,19 @@
 package me.lookforfps.oja.chatcompletion.model.natives.request;
 
-import lombok.AllArgsConstructor;
 import lombok.Data;
 import lombok.NoArgsConstructor;
 
 @Data
-@AllArgsConstructor
 @NoArgsConstructor
 public class ResponseFormat {
     private String type;
+    private String json_schema;
+
+    public ResponseFormat(String type, String jsonSchema) {
+        this.type = type;
+        this.json_schema = jsonSchema;
+    }
+    public ResponseFormat(String type) {
+        this(type, null);
+    }
 }
diff --git a/src/main/java/me/lookforfps/oja/chatcompletion/model/streaming/choice/Delta.java b/src/main/java/me/lookforfps/oja/chatcompletion/model/streaming/choice/Delta.java
index 51c5f27..812d048 100644
--- a/src/main/java/me/lookforfps/oja/chatcompletion/model/streaming/choice/Delta.java
+++ b/src/main/java/me/lookforfps/oja/chatcompletion/model/streaming/choice/Delta.java
@@ -10,5 +10,6 @@ public class Delta {
 
     private String role;
     private String content;
+    private String refusal;
     private List<ToolCall> tool_calls;
 }